BGS mineralogy and petrology collection record

Sample number S31018
Sample Donor Wilson, George Victor
Rock name 'Original entry: Amphibolite, Crushed'
Stratigraphy Not entered
Comments Hornblende-mica gneiss; garnets chloritised and crushed, unusual pinkish pleochroism of amphibole
Locality details Loch of the Wards, Snarra Ness
50k map sheet West Shetland ? (127)

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Map reference HU 237 573
Year collected Not entered 
Bore name Not applicable
Confidentiality No restrictions

Petrological thin sections

Links to high resolution images

Transition from XPL to PPL light


S31018

Cross Polarized, S31018

Plane Polarized, S31018

Plane Polarized, S31018